From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Design position report detailing the status of modifications for Kestrel and Merlin 'C.1' engines.
| Identifier | ExFiles\Box 30\3\ Scan191 | |
| Date | 3rd June 1935 guessed | |
| ITEM. (7) DESIGN POSITION. KESTREL ENGINE. Adaption of Hobson automatic boost control. In hand. Fixed pitch airscrew hub for testing V.P. blades. In hand. Modified cam bearing bolts. Completed. Modified camshaft slot - Kestrel X automatic mixture control. In hand. Adaption of RR. Variable Pitch airscrew hub to take Schwarz blades. In hand. MERLIN "C.1" ENGINE. Supercharger drive - modified fixing for rear layshaft bushes. Completed. Modified dual petrol pump. Completed. Modified lower bearing for upper vertical drive. Completed. Strengthened idler gear bracket - oil pump drive. Completed. Improved lubrication of rocker gear. Completed. Investigation of cam and rocker action. Completed. Air intakes to suit various aircraft installations. In hand. Generator oil pump with relief valve. Completed. Modified camshaft bearing bolts. Completed. | ||